<?php

namespace app\admin\controller\book;

use app\common\controller\Backend;
use think\Db;
use think\exception\DbException;
use think\exception\PDOException;
use think\exception\ValidateException;
use think\response\Json;

/**
 * 附件管理
 *
 * @icon fa fa-circle-o
 */
class Files extends Backend
{

    /**
     * Files模型对象
     * @var \app\admin\model\book\Files
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\book\Files;

    }



    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

	/**
     * 查看
     *
     * @return string|Json
     * @throws \think\Exception
     * @throws DbException
     */
    public function index($book_id = null, $unit_id = null)
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if (false === $this->request->isAjax()) {
            return $this->view->fetch();
        }
        //如果发送的来源是 Selectpage，则转发到 Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
		$filter_w = [];
		if($book_id) $filter_w['book_id'] = $book_id;
		if($unit_id) $filter_w['unit_id'] = $unit_id;
        $list = $this->model->with(['admin'])
            ->where($where)->where($filter_w)
            ->order($sort, $order)
            ->paginate($limit);
        $result = ['total' => $list->total(), 'rows' => $list->items()];
        return json($result);
    }

	/**
     * 附件上传
     */
    public function add($book_id = 0, $unit_id = 0)
    {
        $url = $this->request->param('url');
        if (!$url || (!$book_id && !$unit_id)) $this->error(__("参数不完整"));

		if($unit_id!=0 && !$book_id){
			$book_id = \app\admin\model\book\Unit::where('id', $unit_id)->value('book_id');
		}

		//获取附件名称
		$attachment= \app\common\model\Attachment::where('url',$url)->find();

        $files_data = array();
        $files_data['url'] = $url;
        $files_data['admin_id'] = $this->auth->id;
		$files_data['book_id'] = $book_id;
		$files_data['unit_id'] = $unit_id;
        $files_data['filename'] = isset($attachment['filename'])?$attachment['filename']:$url;
        $this->model->save($files_data);
        $this->success();
    }
}
